<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>CSS Reference File</title>
    <link rel="author" title="Chris Rebert" href="http://chrisrebert.com" />
    <style type="text/css">
#greensquare {
  background-color: green;
  position: absolute;
  left: 50%;
  width: 100px;
  height: 100px;
}
    </style>
  </head>
  <body>
    <p>Test passes if there is a solid green square and <strong>no red</strong>.</p>

    <div id="greensquare"></div>
  </body>
</html>
